<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">数字园区-登录</div>
      <el-form ref="form" :model="form" :rules="rules">
        <el-form-item label="账号" prop="username">
          <el-input v-model="form.username" />
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model="form.password" />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="remember">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" class="login_btn" @click="loginHandler"
            >登录</el-button
          >
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
const REMEMBER_KEY = "remember_key";

export default {
  name: "Login",
  data() {
    return {
      form: {
        username: "",
        password: "",
      },
      remember: false,
      rules: {
        username: [
          { required: true, message: "请输入您的账号", trigger: "blur" },
          { min: 5, max: 20, message: "账号长度为5-20个字符", trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入您的密码", trigger: "blur" },
          { min: 6, max: 20, message: "密码长度为6-20个字符", trigger: "blur" },
        ],
      },
    };
  },

  created() {
    // 去本地取一下之前存入的账号和密码 如果取到了 赋值操作
    const formStr = localStorage.getItem(REMEMBER_KEY);
    if (formStr) {
      const formObj = JSON.parse(formStr);
      this.form = formObj;
    }
  },

  methods: {
    loginHandler() {
      this.$refs.form.validate(async (valid) => {
        // 所有的表单项都通过校验 valid变量才为true 否则就是false
        if (valid) {
          // 登录成功
          // 添加记住我逻辑
          if (this.remember) {
            localStorage.setItem(REMEMBER_KEY, JSON.stringify(this.form));
          } else {
            localStorage.removeItem(REMEMBER_KEY);
          }
          // 这里为异步是确保token返回之后再跳转到首页 防止首页有一些需要依赖token的逻辑
          await this.$store.dispatch("user/asyncLogin", this.form);
          // 跳转到首页
          this.$router.push({ path: "/" });
          // 提示用户登录成功
          this.$message({
            type: "success",
            message: "登录成功",
          });
        } else {
          // 登录失败
          // 做相应的处理
        }
      });
    },
  },
};
</script>

<style scoped lang="scss">
.login_body {
  display: flex;
}
.bg {
  width: 60vw;
  height: 100vh;
  background: url("~@/assets/login-bg.svg") no-repeat;
  background-position: right top;
  background-size: cover;
}
.box {
  margin: 200px 10% 0;
  flex: 1;
  .title {
    padding-bottom: 76px;
    font-size: 26px;
    font-weight: 500;
    color: #1e2023;
  }
  ::v-deep() {
    .ant-form-item {
      display: flex;
      margin-bottom: 62px;
      flex-direction: column;
    }
    .ant-form-item-label label {
      font-size: 16px;
      color: #8b929d;
    }
    .ant-input,
    .ant-input-password {
      border-radius: 8px;
    }
  }
}
.login_btn {
  width: 100%;
}
</style>
